Pontiac Sunfire 1998 - doesn't start engine - anti theft system locked
Hi, I'm owner of a Pontiac Sunfire 1998, Standard transmision 5 gears, without AC. I stopped the car for fifteen days to fix it of many subjects: I've changed bearings and give maintenance to the starter motor and to the generator. First I've disconnected the battery.
After this fifteen days I've reconnected the battery to take the car to a mayor motor cleaning (it spills oil). The engine doesn't start, the "volts" light (battery sign) flashes unconstantly (like if it has a bad connection) and the "theft system" led remains on (not blinking) all time.
I've realized that maybe this protection was enabled because of the battery connects and disconnects, so I've brought a fuel injection engineer to get the computer scanned and erase the error code...
...was not succesful, he found the code in the scanner and have erased it but the "theft system" led remains still on. He told me to do the following:
- open the switch;
- bump on the starter once,
- release the key but keeping the switch open.
- wait for a self recognition of the computer till the led get off before starting the car.
that was 2 days ago, I've realized this operation several times and nothing works yet, even I've waited 4 or 5 hours between operations,
After this I've disassembled all the dashboard in order to check wire status, I've found nothing. I've also checked all the motor harnesses and connections and have found one or two cables without isolation, have them isolated. I also have follow the computer harnesses and disconnect and reconnect them. Same malfunction, not more nor less.
I am urged to find a solution to this problem, please somebody help me with this problem.
I had the same thing and I had to do the bump starter and wait 10 min. and do it again.I did this for about 15 times.I was told that it depends on how far out of sink it had become.hope that it works for you.I asume that you do not have a chip in you key.
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Anti-theft system isn't allowing it too .
The Passlock™ System is provided in order to prevent vehicle theft if the ignition lock cylinder is forced to rotate or the ignition switch is operated while separated from the ignition lock cylinder case. If starting is attempted without authorization from the Passlock™ System, the powertrain control module (PCM) will disable engine starting. Start disable may be in the form of fuel disable or starter disable, depending on engine application.
The components of the Passlock™ System are as follows:
• The ignition lock cylinder and key
• The ignition lock cylinder case, including the Passlock™ sensor
• The ignition switch
• The body control module (BCM)
• The security indicator on the instrument cluster
• The powertrain control module (PCM)
Security light lit on the instrument cluster ? It should have anti-theft system . No , can't just remove it . It has componets - key lock cylinder housing , software programmed into control modules etc... If you just removed or disconnected the pass lock sensor the pcm -engine computer would not see a coded message ,so it would disable fuel injectors an maybe starter . Your best bet ,have a qualified repair shop diagnose it .
Is the security light lit on the instrument cluster ? The vehicle has spark ? Does it have fuel pressure ? Did you check with a fuel pressure gauge ? The passlock anti-theft system use's a sensor in the ignition lock assembly .
The Passlock™ lock cylinder is a locking cylinder that turns a rotating magnet past a stationary hall effect sensor. The rotating magnet creates a resistance code (R-Code) that the cylinder sends to the instrument cluster. The Passlock™ lock cylinder interfaces with the instrument cluster through a 3 wire connection. The 3 wires have the following functions:
Plus software programmed into the instrument cluster and PCM/ECM engine computer .
There is nothing you can do if the anti-theft system is not working , taking out parts won't do any thing , the software in the computers still won't let it start . Your best bet ,take it to a GM dealer .
You may want to do some research on the code. The basic problem is the anti-theft system is not seeing a crank signal and shutting down the fuel pump. It could be the security system, or the crank sensor, or other issues. If you have auto start or a remote starting system it can cause these problems too.
in the 1996 sunfire GM uses an anti theft lock system. It can be triggered by all sorts of things. In order to relinquish this you must have a key to turn the ignition. These are not coded just plain cut keys. Once you attain this you put the key in and turn the ignition to the ACC position and wait ten minutes (theft lock light will turn off), turn off and take key out. You MUST do this 3 times and then the theft lock will be disarmed.
hi , not necessarily , did you replace the key and tumbler , or the ignition switch (electrical part) ? there is a password relearn procedure , attempt to start the vehicle , leave ignition on until THEFT SYSTEM indicator turns off , (approximetly 10 minutes) , turn ignition switch off , attempt to start vehicle , if vehicle starts , password has been learned ... if password does not relearn , i can post some diagnostic procedures .